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PubMed2000

Social hackers: integration in the host chemical recognition system by a paper wasp social parasite.

Obligate social parasites in the social insects have lost the worker caste and the ability to establish nests. As a result, parasites must usurp a host nest, overcome the host recognition system, and depend on the host workers to rear their offspring. We analysed cuticular hydrocarbon profiles of live parasite females of the paper wasp social parasite Polistes sulcifer before and after usurpation of host nests, using the non-destructive technique of solid-phase micro-extraction. Our results reveal that hydrocarbon profiles of parasites change after usurpation of host nests to match the cuticular profile of the host species. Chemical evidence further shows that the parasite queen changes the odour of the nest by the addition of a parasite-specific hydrocarbon. We discuss the possible role of this in the recognition and acceptance of the parasite and its offspring in the host colony.

Animals↗
PubMed2003

Intra-specific variation in social organization of gorillas: implications for their social evolution.

We analysed intra-specific variation in the social organization of gorillas and ecological and social factors influencing them, based on recent data on diet, day journey length, home range size, group size and proportion of multi-male groups in three subspecies [western lowland gorillas (WLG); eastern lowland gorillas (ELG); mountain gorillas (MG)]. Median group size was similar across subspecies and across habitats, but the extraordinarily large group including >30 gorillas was only found in habitat with dense terrestrial herbaceous vegetation. Within-group competition may determine the upper limit of group size in frugivorous WLGs and ELGs in lowland habitats with scarce undergrowth. A frugivorous diet may be a causal factor of subgrouping in multi-male groups of WLGs and ELGs, while a folivorous diet may prevent subgrouping in multi-male groups of MGs. Social factors, rather than ecological factors, may play an important role in the formation of multi-male groups and their cohesiveness in MGs. High gregariousness of female gorillas and their prolonged association with a protector male are explained by their vulnerability to both infanticide (MGs) and predators (ELGs). Comparison of long-term changes in group composition and individual movements between ELGs in Kahuzi and MGs in the Virungas suggest that the occurrence of infanticide may promote kin-male association within a group. Threat of infanticide may stimulate MG females to transfer into multi-male groups to seek reliable protection and maturing MG males to stay in their natal groups after maturity. By contrast, the absence of infanticide may facilitate ELG females to associate with infants and other females at transfer and ELG males to establish large groups in a short period by taking females from their natal groups, by luring females from neighbouring groups, or by takeover of a widow group after the death of its leading male. These conditions may prevent ELG and WLG maturing males from remaining to reproduce in their natal groups and possibly result in a rare occurrence of multi-male groups in their habitats. Similar reproductive features of MG and ELG females suggest both female strategies have been adaptive in their evolutionary history.

Adaptation, Biological↗
PubMed1987

The effects of peer social initiations on the social behavior of withdrawn maltreated preschool children.

The present study evaluated the treatment and generalization effects of implementing a peer social initiation intervention with four severely withdrawn maltreated preschool children. Positive social response and initiation data were collected across the treatment (a playroom) and the natural classroom setting. A reversal design superimposed on a multiple baseline was used to evaluate the effectiveness. The results indicated increases in positive social responses and initiations across treatment and generalization settings. Follow-up data for two children indicated time and setting-time generalization effects. Teacher reports validated treatment gains.

Behavior Therapy↗
PubMed1995

Two-year follow-up of social phobias treated with Social Effectiveness Therapy.

A 2-yr follow-up assessment was conducted with patients treated with Social Effectiveness Therapy (SET), a multi-component treatment for social phobia. Eight of the 13 patients who completed the treatment study were available for the follow-up. The results indicated that treatment gains were maintained over the 2-yr follow-up interval, and there was some indication of further improvement over that attained at posttreatment. The findings are discussed in terms of the efficacy of SET and the durability of behavioral treatment of social phobia.

Adult↗
PubMed1994

Validity issues in self-statement measures of social phobia and social anxiety.

Measures to assess internal dialogue or self-statements in socially phobic or anxious clients are now frequently used in clinical and research settings. Such cognitive assessment techniques are rarely considered, however, with regard to psychometric criteria. This article reviews the literature on self-statement assessment of social phobia and social anxiety from the perspective of content, criterion, convergent and discriminant validity. In general, most measures have shown good evidence of validity. Different scoring systems in addition to thought valence appear worthwhile, and multiple measures and assessment occasions should be considered.

Anxiety Disorders↗
PubMed1992

The quality and quantity of social support: stroke recovery as psycho-social transition.

The impact of various types and amounts of social support is examined in the context of recovery from first stroke. We conceptualize the rehabilitation process as a psychosocial transition. In a longitudinal design, 44 patients were followed for 6 months following first stroke. Growth-curve analysis (repeated measures MANOVA) was utilized to examine the impact of three types of social support on changes in functional status during recovery. While all three types of support (emotional, instrumental and informational) were shown to be significantly related to recovery of functional capacity, substantial differences were found in the nature of those effects. The impact of social support does not appear during the first month of rehabilitation, indicating the importance of longitudinal designs and longer observation. Patients reporting high level of emotional support showed dramatic improvement despite having the lowest baseline functional status. Instrumental support is most closely related to positive outcomes when provided in moderate amounts. Unlike the other two types, the effect of informational support is mediated by disease severity.

Activities of Daily Living↗
PubMed2003

Social stress differentially regulates neuroendocrine responses in laying hens: I. Genetic basis of dopamine responses under three different social conditions.

Effects of genetic-environmental interactions on plasma dopamine (DA) concentrations were studied in White Leghorn chickens selected for both high (HGPS) or low (LGPS) group productivity and survivability resulting from cannibalism and flightiness. Plasma DA levels were measured from chickens in three social treatments: single-, two-, or ten-hen cages. The two-hen treatment consisted of paired chickens from three genetic lines: HGPS, LGPS and a commercial strain, Dekalb XL (DXL). In HGPS/DXL and LGPS/DXL pairs, the DXL hen was used as a standardized genetic competitor. The ten-hen treatment contained only hens from the same line, which is similar to the original selection condition. After 7 weeks housing in the social environments, LGPS hens in the ten-hen treatment had greater plasma DA concentrations than HGPS hens (P<0.05). Compared to levels in the ten-hen treatment from the same line, plasma DA concentrations in both HGPS and LGPS hens were significantly lower in the two-hen treatment (average mean, 0.09 vs. 0.15 ng/ml and 0.22 vs. 0.44 ng/ml, P<0.05, respectively), but significantly higher in the single-hen treatment (average mean, 0.44 vs. 0.15 ng/ml and 1.78 vs. 0.44 ng/ml, P<0.05 and P<0.01, respectively). In the single-hen treatment, LGPS hens had greater plasma DA levels than HGPS hens (P<0.05). The results provide evidence of genetically related differences in the regulation of chickens' plasma DA concentrations in response to social stress. These differences may magnify the behavioral and physiological differences observed in the lines under basal and challenged conditions. These results suggest that these chicken lines may provide a new model for investigating effects of DA on the control of behavioral, neural and endocrine responses to stress.

Animals↗
PubMedDate not supplied

Problem social behavior in the workplace: an analysis of social behavior problems in a supported employment setting.

The social skills problems that may influence the work-related success of supported employees has been only infrequently documented in the research literature. Though a multitude of research describes the performance-related challenges faced by supported employees, few papers address the interpersonal difficulties encountered by supported employees in the workplace. The present paper uses job trainer or "coaches" logs and two promising rating scales (the Psychopathology Instrument for Mentally Retarded Adults [PIMRA and PIMRA-S]) to describe the social problems encountered by some supported employees. Job coach's logs indicated that approximately 58% of supported employees had experienced one or more incidents of interpersonal difficulty during their employment tenure and that 40% of the problems experienced by these individuals could be described as sexuality-related. Overall, about 25% of all supported employees had reported incidents of conflict with employees or customers that seemed sexuality-related. In addition, social and developmental factors that might contribute to the interpersonal problems found in the present research are discussed.

Adult↗
PubMed2003

Epidemiology and natural course of social fears and social phobia.

OBJECTIVE: To summarize epidemiological studies providing data on prevalence, incidence, comorbidity, natural course, risk factors and consequences of social phobia (SP). METHOD: Data from cross-sectional studies and prospective longitudinal studies in particular are considered. RESULTS: These studies portray SP as a frequent mental disorder, which begins typically in early adolescence, and is highly comorbid with other anxiety disorders, as well as secondary depression and substance abuse disorders. Several possible risk factors have already been identified for the onset and unfavorable course of SP; some of them have been tested in prospective longitudinal studies. SP is a chronic disorder when compared with other mental disorders and when subclinical symptomatic levels are considered. Impairment caused by SP is considerable and increases over a patient's life span. The negative impact of SP is not only reflected in subjective well-being and reduced quality of life but also in social role functioning, and it impacts negatively on career progression. CONCLUSION: Prospective longitudinal studies in representative samples drawn from the general population provide information that allows the overall direct and indirect costs of the disorder (treatment costs, disability, social welfare) to be determined, and enables an improvement in long-term care strategies as well as preventive efforts to be established.

Adolescent↗
PubMed1992

Social competence promotion with inner-city and suburban young adolescents: effects on social adjustment and alcohol use.

This study assessed the impact of school-based social competence training on skills, social adjustment, and self-reported substance use of 282 sixth and seventh graders. Training emphasized broad-based competence promotion in conjunction with domain-specific application to substance abuse prevention. The 20-session program comprised six units: stress management, self-esteem, problem solving, substances and health information, assertiveness, and social networks. Findings indicated positive training effects on Ss' skills in handling interpersonal problems and coping with anxiety. Teacher ratings revealed improvements in Ss' constructive conflict resolution with peers, impulse control, and popularity. Self-report ratings indicated gains in problem-solving efficacy. Results suggest some preventive impact on self-reported substance use intentions and excessive alcohol use. In general, the program was found to be beneficial for both inner-city and suburban students.

Adolescent↗
PubMed1990

Social blockade of taste-aversion learning in Norway rats (Rattus norvegicus): is it a social phenomenon?

In Experiment 1, hooded rats (Rattus norvegicus) were exposed to a novel diet in a food dish or on a conspecific; they were allowed to consume the same diet and then were injected with a toxin LiCl. Later both groups ate more of the novel diet than animals that had not been exposed, and the conspecific-exposed group ate more than the dish-exposed group. Reducing aversion learning by exposure on a conspecific is known as social blockade. We examined if this effect is because a conspecific intensifies dietary cues and thereby increases latent inhibition. Experiment 2 failed to show that diet on a conspecific is a more effective conditioned stimulus for taste-aversion learning than diet in a dish, and Experiment 3 showed that diet in a dish is an effective overshadowing stimulus in aversion learning but diet on a conspecific is not. These results suggest that social blockade cannot readily be assimilated to a latent-inhibition model and may be a distinctly social form of learning.

Animals↗
PubMedDate not supplied

Age differences in the bases for social judgments: tests of a social expertise perspective.

Research indicates that increasing age is associated with greater use of trait-diagnostic behavioral information in making social judgments. These effects may reflect an aging-related increase in social expertise, indicative of more powerful and accessible knowledge structures. The current work is an attempt to provide further evidence in support of the social expertise view and a test of an alternative hypothesis. Results of this work indicate that age differences in the use of trait-diagnostic information were moderated by factors thought to affect the accessibility of relevant knowledge structures.

Adult↗
PubMed1991

Social support and social networks: their relationship to the successful and unsuccessful survival of elderly people in the community. An analysis of concepts and a review of the evidence.

Many studies suggest that there is a relationship between social support and physical and psychological health status, risk of institutionalization and mortality of the elderly. Although longitudinal analyses confirm these suggestions, all studies experience problems with network methodology, and none use comparable operational or working definitions. It is known that there is an effect between these variables, but the nature of the relationship is still unknown. This paper reviews existing research on social networks, social support and associations with health status, mortality and risk of institutionalization.

Aged↗
PubMed2003

Using social constructionist thinking in training social workers living and working under threat of political violence.

This article describes and analyzes an intervention program with social workers living and working in a situation of uncertainty created by political violence such as war and terrorism. The author used a social constructionist perspective as a theoretical framework, emphasizing the effect of the social and political context in constructing the experience and a recognition of the personal and professional knowledge acquired in the daily experience. The author used qualitative methods to evaluate the process and outcome. The narrative-holistic analysis focused on reconstructing meaning and adapting it to the new situation, the main thrust of the program. From the thematic analysis four main themes emerged: (1) loss as a result of political violence; (2) meaning of strength and weakness in situations of political violence; (3) preparation for terrorist attacks; and (4) definition of a safe place. The outcome evaluation describes the meaning of this kind of training program to the participants. The specific context of the training program is discussed as well as possibilities of using it in different contexts.

Allied Health Personnel↗
PubMed2006

Clinical and social predictors of application for social security disability insurance by workers' compensation claimants with low back pain.

OBJECTIVE: The objective of this study was to identify clinical and social predictors of application for Social Security Disability Insurance (SSDI) in workers' compensation claimants with low back pain. METHODS: Archival and interview data were analyzed for 1372 Missouri claimants who were, on average, nearly 42 months postinjury. RESULTS: Two hundred sixty-five (19.3%) claimants were receiving SSDI (8.0%) or had applied for SSDI (11.3%). Logistic regression indicated that black race, older age, herniated disc diagnosis, surgery, and longer time since injury were associated with increased odds of SSDI. Higher preinjury wage, more education, and higher satisfaction with medical treatment and/or treatment by employer were associated with decreased odds of SSDI. CONCLUSIONS: Application for SSDI among claimants with occupational low back pain is associated with social factors like race, satisfaction, and socioeconomics as well as clinical factors like diagnosis and surgery.

Adolescent↗
PubMed2006

Social support versus social evaluation: unique effects on vascular and myocardial response patterns.

OBJECTIVES: This study examined the effects of companion presence and evaluation on cardiovascular reactivity to an acute stressor. METHODS: Eighty-two women completed a speech task in one of four conditions: with an evaluative companion present, with a nonevaluative companion present, alone while being evaluated by a companion with a video camera, or alone while the companion waited outside. RESULTS: A significant interaction between companion condition and evaluative condition on systolic blood pressure was found; women who were evaluated while alone demonstrated significantly greater reactivity than did women who were in the nonevaluative alone condition. Furthermore, both potential for evaluation and the presence of a companion had important influences on hemodynamic parameters underlying the blood pressure response. Specifically, those in evaluative conditions showed greater myocardial responding than those in nonevaluative conditions and those in alone conditions showed greater vascular responding than did those with companions present. Taken together, those in the evaluative alone condition demonstrated systolic blood pressure responses reflecting both myocardial and vascular contributions. CONCLUSIONS: Social support and social evaluation have unique effects on vascular and myocardial responding. The implications for future research include focus on the stress-buffering model of social support and the value of including impedance cardiography measures in investigations of cardiovascular functioning.

Adolescent↗
PubMed2001

Neuroticism and social comparison orientation as moderators of affective responses to social comparison at work.

In a study among 72 nurses, the affective consequences of social comparison were examined and related to neuroticism (N) and to social comparison orientation (SCO). Participants were confronted with a bogus interview with an upward versus a downward comparison target. Positive affect and identification were higher, and negative affect was lower, in the upward than in the downward comparison condition. Independent of their SCO, the higher individuals were in N, the less they identified with the upward comparison target, the more they identified with the downward comparison target, and the less positive affect they showed following confrontation with the upward comparison target. In contrast, independent of their level of N, the higher individuals were in SCO, the more negative affect they showed following confrontation with the downward comparison target. The effects on negative affect stayed the same when controlling for positive affect, and the effects on positive affect stayed the same when controlling for negative affect. These effects were also obtained when perceived direction was used as a predictor instead of the experimentally manipulated direction. It is concluded that, although N and SCO are correlated, these variables seem to have independent and distinct effects upon the responses to social comparison information.

Adult↗
PubMed1976

An analysis of adult social spacing tendencies and related social interactions in a colony of spider monkeys (Ateles geoffroyi) at the San Francisco zoo.

Observations on adult interindividual spacing and social interactions for 13 spider monkeys (Ateles geoffroyi) of an approximately 48 animal captive colony were made from mid-June through August 1972. In this analysis the interanimal distances, general activities, and social interactions per minute observation for each subject were compared for a sample of 7 sexually mature males and 6 sexually mature females. Association tendencies between members of the same sex were significantly high as were exchanges of the taxon-specific 'pectoral sniff and embrane" interactions and grooming. The direction and nature of agonistic interactions was predominantly intersexual and involved frequent attacks by single or multiple males against females. Comparisons with a feral population of spider monkeys (Ateles belzebuth) revealed marked similarities in spatial affinities and patterns of social interaction.

Agonistic Behavior↗